Question

help again

Answer 1

i need helping matching

Answer 2

\(\large i^2 = -1\)

Answer 3

use that to simplify the given expressions

Answer 4

i22=1

Answer 5

\[\huge i^{22} = \left( i^2\right)^{11} = (-1)^{11} = ?\]

Answer 6

-1

Answer 7

i7?

Answer 8

yes!

Answer 9

you just need to use \(\large i^2 = -1\)

Answer 10

\[\large i^7 = i^{4+3} = i^4.i^3 = (i^2)^2i^3 = (-1)^2 i^3 = i^3\]

Answer 11

thanks

Answer 12

how bout 4

Answer 13

just distribute/FOIL
and in the end use i^2 = -1

Answer 14

i mean 3

Answer 15

combine like terms

Answer 16

1+10 =D got it

Answer 17

Correct !

Answer 18

thank u sooooooo much mind helping me again